Log-turner



(No Model.) A 2 Sheets-Sheet 1.

H. 0. LANGE.

LOG TURNER.

No. 440,043. Patentd Nov. 4, 1890.

I [WVENTOR J (No Model.) I 2 Sheets-Sheet 2; H. 0. LANGE.

LOG TURNER.

No. 440,043. Patented Nov. 4, 1890.

J I-Zzrmaza 0Z4 4 iii? BMW/M UNITED STATES PATENT OFFICE,

HERMAN O. LANGE, OF MUSKEGON, MICHIGAN.

LOG-TURNER.

SPECIFICATION forming part of Letters Patent No. 440,043, dated November4, 1890.

Application filed October 31, 18 89.

To all whom it may concern:

Be it known that I, HERMAN 0. LANGE, a citizen of the United States,residing at Mus kegon, in the county of Muskegon and State of Michigan,have invented a new and useful Improvement in Log-Turners, of which thefollowing is a specification.

This invention relates to an improvement in log-turners in saw-mills,relating especially to that class of log-turners in which a spiked baroperated by machinery situated below the log deck is thrust up throughthe floor and is employed to turn the log on the carriage or to roll italong the log-deck toward the carriage.

The invention has for its object the pro duction of a tooth, and itsconnection to the bar of such form and design that the tooth shall beout of the way when the bar is sinking downward and yet willproject farenough from the face of the bar to allow it to catch against a log whenthe bar is rising and be thrown out into position to exert the fullturning-power of the bar as that continues to rise after the teeth havecome into engagement with the log.

In the drawings, Figure 1 represents the upper part of a tooth-bar of alog-turner, showing their teeth, method of attachment, and theiroperation, both when in contact and when out of contact with the log.Fig.2 rep resents a rear View of the tooth-bar, showing the two sidepieces and tooth and pins.

The near side of the tooth-bar is removed, in order that the way inwhich the teeth are hung may be seen.

The tooth-bar is made of two parallel pieces A C, of metal or wood,separated from each other by a distance sufficient to allow the teeth Bto swing freely between them upon pins P P, that pass through theparallel pieces and through the tooth and across the opening between theparallel pieces A and O.

The teeth B B are made much ,heavier at the inner end than at theouterend, the inner being the end which lies farthest back in the openingbetween the side pieces A and O of the tooth-bar, and the outer endbeing the sharp or tooth end proper, which extends out beyond the sidepieces and is adapted to engage with the log.

Above each tooth are two pins S and T, ar-

Serial No. 328,834. (No model.)

ranged to act as stops to the motion of the tooth 13 upon the pin 1. Thestops S limit the upward movement of the point of the tooth as that endrises in consequence of the greater weight of the other end, and theupward movement of the base of the tooth is limited by the stop T whenthe point is forced downward by the weight of the log or timber, againstwhich the tooth presses when the bar is pushed upward in the operationof turning the log. hen the tooth-bar is in its normal condition, andthe teeth are not in contact with any external object, the teeth hangwith their pointed or lighter ends drawn back nearly, though notentirely, into the opening between the parallel side pieces. The stop Sprevents the point of the tooth from coming entirely back into theopening between the side, leaving just enough of the tooth ext-endingout to catch under the log or against the rough bark of the side, and assoon as the weight of the log comes on the point of the tooth the toothis rotated on the pin P, so that the point leaves the stop S, and thebase of the tooth rises and comes to rest against the stop T, and in therotation the point has swung outward from the side pieces and presents along lifting-tooth to act against the log.

I am aware that movable teeth and teeth having their movement arrestedby stops have been used; but I am not aware that such teeth have beenemployed where the tooth would assume a position such that its pointwould be thrown out of operative contact with the log or timber at allpoints where it was not actually engaged in lifting or pressing upagainst the timber. On the contrary, the movable teeth that have beenheretofore usedsuch as are shown in the patent to WV. E. Hill, No.148,365, and the patent to W. E. Hill, No. 2 5,496, show movable teethwhich have the tooth portion or part which engages the log extended outas far as possible at all times when not forced back by some outsidepressure.

I do not wish to confine myself to the particular triangular teeth shownin the drawings, as many forms of teeth may be used in which the innerend will be heavier than the out-er end; nor do I wish to confine myselfto the use of atooth with two stops above it, as the tooth maybe soshaped that asingle stop pointed at one end and weighted at the other,and each tooth being so hung that its pointed end moves upward andbackward nearly, but not entirelv, into the opening between the side I 5pieces of the bar when not in contact with an external object,substantially as and for the purpose described.

HERMAN O. LANGE.

Witnesses:

R. A. PARKER, WM. F. NINNEMAN.

